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When calling 'add server' with a hostname from the cli (runtime), str2sa_range() does not resolve hostname because it is purposely called without PA_O_RESOLVE flag. This leads to 'srv->addr_node.key' being NULL. According to Willy it is fine behavior, as long as we handle it properly, and is already handled like this in srv_set_addr_desc(). This patch fixes GH #1865 by adding an extra check before inserting 'srv->addr_node' into 'be->used_server_addr'. Insertion and removal will be skipped if 'addr_node.key' is NULL. It must be backported to 2.6 and 2.5 only.
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)